Improvement in sewing-machine tables



'in Sewing-Machine Tables, of which the followot'n sewing-machine table constructed after.

and upon which it rocks :is einfnxis,v is formed undue lateral movementA by the washers upon est NITED STATES ATENT OFFICE.

oHAELEs H.IW1LLooX, 0F NEW YORK, AssiGNoE To WrLLeoX & G11-sns SEWING MACHINE COMPANY, or NEW YORK, N. Y.

iMPnoi/EMENT IN sewiNeAr/mci-nN-E TABLES.

" Speciicntionforming To all whom 'it may concern.,-

Be it known that i', CHARLES H. WILLeoX, of' the city, county, and Stute of New York, have invented a new and useful Improvement ing is apeeication.

Myinventz'on consists in a novel combination and arrangement of parts lWith the treadle of a table for sewing and other iight machinery, its object being to greatly facilitate the operan tion 'ot' the maehineby reueing the friction or" the working parts of the trenille. l

In the drawings, Figure 1 is e side elevation the plan of my invention. Figui! is avertioal section throngn the linen-y, Fig. 1. I The bar B,to which the treadle C is secured,

at each end into a. triangniar' knife-edge' prosnitnhle size to fit the V-s'haped bearings -a in the loi-yer pnrtot'the side frames,- A, and thebar is prevented iirom'heving any the ends ofthe tie-roti c, whicli'holds the lower part of the frame together.

`The ends of the "nar B are beveled o", as shown in Fig. 2,iu order to reduce the bearingsurface of the ends against the frau1e,nndY

rattling or loose specified.

part of Let-tersiPntent No. l06,22, dated August 9, 1870..

of the parts. The onlyworking parts Ain contactbeng the'lower edge of the knife-edge b and the singular seat inthe bearing a, the fric- -tingtbetweeuthem is very slight, sothat there l is little or no necessity to lubriente the same. The tf-shaped seat of the bearings a may be formed of' e separate 'piece of hard metal ietv into a groovein theframe, or otherwise appilied to it, and the ends b may bevformed also of n piece of hard metal, so that the weer of 'the parts in contact Will be very. slight, and all vented.

What I ciaim as my invention is- The rock-shaft B,.bc\eled at the ends, and proided with Vshaped bearings @extending to the center of motion of the rock-shaft B, and supported iu n V-shaped hearing-seat, u, in combination with a treadle movement, substantially as and for the purposes set forth and oHAs. H. WiLEooX.

Witnesses:

C. A. DURGIN, EDWARD E. OsBoRN.

jarring motions entirely prea 

